Wringer



l Oct. l, 1940. w. L.. KAUFFMAN, 2D l 2,215,200

WRINGER Original Filed July 11, 1932.

INVENTOR ATTRNEY Patented Oct. 1,y 1940 UNITED STATES PATENT OFFICE wmNGEa Walter L. Kauffman, II, Erie, Pa., assignor to Lovell Manufacturing Company, Erie, Pa., a corporation of Pennsylvania Original application July 11, 1932, Serial No. 621,921. Divided and this application October 19, 1938, Serial No. 235,877 A tion is designed to improve safety release de vices and to that end provides a trip bar across the wringer which may be readily operated to effect the release. 'I'he present invention coni l templates also avery simple mechanism in which the movement of the bars is very directly communicated to the release mechanism Vso that a very sensitive release may be accomplished. The invention also involves the simplication of the mechanism. Features and details of the invention will appear from the speciication and claims. The present application is a division of an application led July 11, 1932, `Serial No. 621,921. A preferred embodiment of the invention is zo illustrated in the accompanying drawing as follows:

Flgjl shows a front elevation of the Wringer partly in section showing the invention.

Fig. 2 a section on the line 9--9 in Fig. 3. gg Figs. 3 and 4 end views of the upper part of the Wrnger.

Fig. 5 a perspective view of catch plates forming a. part of the releasing mechanism.

I marks the base of the wringer frame, 2 the a0 side stiles, 3 and 4 the wringer rolls, 5 and 6 the shafts of the rolls, and' I and 8 bearings of the rolls. The bearings are mountedv as usual in the stiles. A top bar 9 is ofchannel form with closed ends which telescope over the upper 35 ends of the stiles. A spring I0 provides pressure means for the rolls, the ends of the spring resting on the upper bearings 8 and the center of the spring being subjected to the action' of an adjusting screw II.

o Catch plates I2 are arranged at each side of the upper ends of the top stiles. The catch plates at the opposite sides are united by a cross plate I3. 'I'he catch plates have pivot openings I4 and lips I5 struck up from the side stiles extending 5 through these openings forming a pivotal connection for the catch plates. I

A release lever I6 is arranged over the end of the top stile. It has downwardly extending flanges I1 at each side of the top bar. Lips I8 so arearranged along the lower edges of the anges I'l and these lips are provided with pivot extenlsions I9 which extend through pivot openings in the side walls ofthe top bar. The catch plates I2 have hooks 2| which lock en the lips ll Il to hold the top bar in normal position and 'in position to retain the hooks 2|.

thus sustain the pressure of the spring. A spring 22 is arranged'between the release lever I6 and the top plate and :tends to hold the release lever Shoulders 24 are arranged on the locking plates and en 5 gage the outer ends of the lips4 I8 when the release lever is in normal position. Thus the accidental release of the catch plates is avoided, the catch plates being locked in position by the shoulders 24 until the outer end of the lever is 10 raised.

A rocker 38 is pvotally mounted on the upper part of one of the side stiles. It is directly pivoted on a spacing bushing 39 mounted on a 'screw 4I), the spacer being clamped by a nut 4|"1Iiacting on a washer Illa. The rocker has a trip extension 42 which Aprojects outwardly beyond the latch plates I2 and is provided with an inturned lip 43 which is directly under the end of the release lever I6. The trip bars, or oper- 20 ating bars 44 are secured to the rocker 3B and extend across the upper part of the wringer and in iront thereof. Preferably these rods extend V up suihcently so that the operator can thrust against them with the open hand pushing the rods toward the top bar. The opposite ends of the rods are secured in rocker arms 45 secured on a pivot 46, the details of the pivot being similar to -those securing the rocker 38.

In the operation of the device when the 'oper- 30 ator swings in either trip bar 44, this swings the front, or rear edge of the rocker plate 42 toward the center and this edge movesV on an arc with the pivot of the rocker 38 as a center, thusA lifting the end of the release lever I6 and 35 this lifting of the lever lifts the lip I8 out of engagement withthe shoulder 24 and permits the latch plate to slide oilthe lip I8 and release the top bar.

The release is effected bothfrom a push or a pull of the trip rods toward or from the face of 'the wringer frame or`up and down, and the release is elected with equal sensitivity at any part of the trip bar. The trip bars give more than asingle target as a place for the operator to hit. This is important in that this operationis only utilized under panic conditions. 'Ihe bars extend in a direction parallel to the rolls and maintain this parallel relation as they are rocked.

The opposite end of the top bar has a lip 41 which forms a shoulder 48. A similar lip 49 is struck up in the stile, this lip forming a shoulder engaging the shoulder 48. Thus the top bar is locked against upward Vmovement until the latch end of the top bar is released. the latch end then swinging'upwardly on the shoulders as a hinge and this is followed by the disengagement of the shoulders making a full release of the pressure on the rolls.

What I claim as new is:

1. In a wringer having a frame with stiles, rolls mounted in the frame, pressure means for the rolls, and a safety release device comprising a trip bar extending parallel to the wringer adjacent to the top of the wringer; the combination with the safety release device of trip arms on which the bar is mounted, said arms having pivots mounted on the upper parts of the stiles below .the trip bar and with axes parallel with the rolls; and means responsive to a pivotal movement of said bar releasing the pressure means.

2. In a wringer having a frame with stiles, rolls mounted in the frame, a top bar, pressure means for the rolls exerting pressure from the top bar, and a safety release comprising a latch mechanism between the top bar and the upper end of a stile; the combination with the safety release device of a trip bar parallel to the frame pivotally mounted on the stiles with a pivot below the trip bar and operating the latch mechanisrru a wringer frame with stiles, parallel rolls, and

pressure means to urge the rolls toward each 4a. wringer frame with stiles, parallel rolls, and

pressure means to urge the rolls toward each other, the combination with the frame of a trip bar parallel to the rolls and sensitive for release to initial, horizontal pressure and also' to initial downward pressure; means on the frame stiles below the top thereof movably supporting the trip bar; and mechanicalLv actuated means making the trip bar eieetive to release the pressure means when the trip bar is moved while remaining parallel to the wringer rolls.

6. A wringer comprising a frame having separable sections, the bottom section being rigid and having side stiles and a base, wringer rolls journaled in the frame, pressure means for applying pressure to the wringer rolls when the frame sections 4are operatively connected, and a safety release device connecting the sections for maintaining the wringer rolls under pressure; the combination with said frame sections of a trip bar parallel to the rolls and sensitive to horizontal pressure toward the frame; means on the lower section of the rigid frame movably supporting the trip bar; and mechanically actuated means making the trip bar eiective to release the upper section and thus release the pressure on the rolls when the trip bar is moved `while remaining parallel to the wringer rolls.

WALTER L. KAUFFMAN, II. 

